单项选择题分布于软腭和腭扁桃体的动脉为 A. 甲状腺上动脉 B. 咽升动脉 C. 舌动脉 D. 上颌动脉 E. 颞浅动脉
单项选择题A resident physician demonstrating the correct technique for inserting a subclavian central venous line. He has a medical student palpate the clavicle, then the chest wall below it. The first bony structure that can be palpated below the inferior margin of the medical portion of the clavicle is the A、acromion B、atlas C、first rib D、manubrium E、second rib